, and what u.s., nato and allied roles will be, we talked to senators john mccain and jack reed. >> there are times where the greatest nation in the world and the strong eh nation in the world has to act alone, that is not the preference, and the preference is to build coalitions as we have most of the times in the past. i think that president obama may be unintentionally or intentionally conveying the impression that we can never act alone. i don't think that is appropriate, given possible scenarios. >> as we have seen, this trance formative effect in egypt and tunisia, i can't we want to encourage that but we want to recognize it is best done through a coalition, it is best done by using the particularly unique capabilities of the united states, but not committing our forces to long-term engagements. >> and david ignatius of the washington post, david ignatius, doyle mcmanus and julianna goldman. >> it is exhilarating seeing for people calling for change and sweeping away governments and yet where it is going, what the risks are for the united states, nobody knows, and i think
